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Estimating the activation energy for non-isothermal crystallization of polymer melts |
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| Authors: | Vyazovkin S. Sbirrazzuoli N. |
| Affiliation: | (1) Department of Chemistry, University of Alabama at Birmingham Department of Chemistry, 901S 14th Street, Birmingham, AL 35294, USA;(2) Chemistry of Organic and Metallic Materials C.M.O.M., Thermokinetic group, University of Nice, Sophia Antipolis, 06108 Nice, cedex 2, France |
| Abstract: | The advanced isoconversional method can be used to determine the effective activation energy of non-isothermal crystallization of the polymer melts. The method has been applied to DSC data on crystallization of poly(ethylene terephthalate) (PET). The resulting activation energy increases with the extent of crystallization from -270 to 20 kJ mol-1. The variation is interpreted in terms of the Turnbull and Fisher crystallization theory. This revised version was published online in July 2006 with corrections to the Cover Date. |
| Keywords: | crystallization isoconversional kinetics poly(ethylene terephthalate) effective activation energy |
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